Features： 1、Upgraded Double Sided Coating: High light transmittance, improve color sensitivity, color enhancement effect, improve color blindness and color weakness. 2、Light Glasses Leg: Flexible and elastic, will not pinch your face, smooth opening and closing, suitable for many face shapes, easy and comfortable to wear. 3、Reasonable Structure: Helps color blind people to identify colors correctly, fine workmanship, silicone nose pads, smooth hinge, curved glasses leg, simple and practical. 4、Multiple Applicable Scenarios: Thoughtful and practical gifts for loved one, parents, elders, relatives, etc. on birthdays. Suitable for driving, art hobbies, IT industry work, etc. 5、Alloy And Resin Material: Alloy glasses frame, resin lens, safe and eco friendly, firm and sturdy, stable and anti impact, no deformation, durable for use. Specification： Item Type: Color Blind Glasses Material: Alloy, Resin Size: Approx. 14.5 x 13.8 x 5.1cm / 5.7 x 5.4 x 2in Function: Improve color blindness and color weakness, help identify colors correctly Package List： 1 x Glasses 1 x Glasses Case 1 x Glasses Cloth 1 x Test Map